So I have the caravan bodyguard Khargo as my follower and just completed "Escape from Chidna Mine" where he was removed from my party and then rejoined once I left. Ever since then, if he stands still without weapons drawn for more than 10 seconds he goes into the "listening to bard music" animation. It's effing hilarious and it looks like he's trying to be "gangsta" or something. I have no clue how this could have happened... I don't even think followers can respond like that to bards like other NPCs can. Whatever, I hope this bug stays in my save forever